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GY 101 Test 1
| Term | Definition |
|---|---|
| Earth's Four Spheres | Atmosphere, Hydrosphere, Lithosphere, Biosphere |
| Atmosphere | gas and water vapor |
| Hydrosphere | gas, ocean, and rivers |
| Lithosphere | absorbs radiation, soil and tectonic plates |
| Biosphere | interact with all other spheres, changes landscape, and is for living organisms |
| Closed System | matter, substances, can not go out and come in |
| Open System | energy and matter can go out and come in |
| Three Major Map Projections | cylindrical, conical, planar |
| Latitude | never intersect each other, run in an east-west, measure distance north-south of the equator, are equal length, known as parallels |
| Equator | slices the planet into northern hemispheres and southern hemisphere; northern hemisphere has has positive latitude and southern hemisphere has negative latitude |
| Prime Meridian | the reference line for longitude; it creates the eastern and western hemisphere. Longitude is positive in the eastern hemisphere and negative in western hemisphere; 0 degrees |
| Longitude | are farthest apart at the equator and meet at the poles, cross the equator at right angles, run in a north-south direction, measure distance east-west of the primer meridian, are known as meridians |
| International Date Line | 180 degree longitude |
| Tropic of Cancer | 23.5°N |
| Tropic of Capricorn | 23.5°S |
| Arctic Circle | 66.5°N |
| Antarctic Circle | 66.5°S |
| What are the six time zones of the United States? | Hawaii +10hrs Alaska +9hrs Pacific +8hrs Mountain +7hrs Central +6hrs Eastern +5hrs |
| Spring Equinox (March 20) | Sun declination is at the equator; the northern hemisphere and southern hemisphere have equal days and nights; 23.5N is the max movement and 23.5 in the south; the range would be 47 degrees |
| Summer Solstice (June 21) | The sun’s declination is 23.5 N; the southern hemisphere has a shorter day; northern hemisphere has a longer day; It’s 24hrs day in the arctic circle 66.5 N degrees to the north pole; 24hrs dark in antarctic circle 66.5S to south pole |
| Winter Solstice (December 21) | sun’s declination is at the Tropic of Capricorn (23.5 S); Day is longer in the southern hemisphere and shorter in the northern hemisphere. |
| Types of Scales | Graphic Scale, Verbal Scale, and Representative Fraction |
| How to interpret scale? | Large scale = smaller area, larger details Small scale = larger area, smaller details |
| Cylindrical Projection is best for... | Tropical Locations |
| Conical Projection is best for... | Midlatitudes |
| Planar Projection is best for... | Polar Regions |